#include <iostream>
#include <complex>

using namespace std;

int main()
{
 complex<double> x(7, 5);
 complex<double> y(11, 9);

  cout<< "x = " << x << endl;
  cout<< "y = " << y << endl;

 complex<double> z = x + y;

 cout << "z = " << z << endl;

 return 0;
}
